Carbon-prevention device



J. B. SCHUMACHER.

CARBON PREVENTION DEV'iCE.

APPHCATION FILED JULY I7, 1919.

1 $54,580, Patented Oct. 5, 1920.

Witness: Inventor W \n, 9W w. 532

Attorney PATENT OFFICE.

JAMES B.=. SCHUMACHER, 0F CINCINNATI, OHIO.

CABBO N BREYENT'ION DEVICE,

Application 7 filed July 17, 1919.

To all whom it may concern:

Be it known that I, JAMES B. SoHU- mnonnn, a citizen of the UnitedStates, residing at Cincinnati, Hamilton county, Ohio, have inventedcertain new and useful Improvements in Carbon-Prevention Devices, ofwhich the following is a specification.

This invention pertaining to gasolene engines relates to a system formingling water with the mixture before ignition, in order to prevent orlessenthe deposit of solid carbon.

The invention will be readily understood from the following descriptiontaken in connection with the accompanying drawing in which Figure 1 is aside elevation of a device exemplifying my invention: and

Fig. 2 a horizontal section, on an enlarged scale, in the plane of linea of Fig. 1, of the valve block.

In the drawing 1. indicates the intake pipe of a gasolene engine:

2, a water tank:

3, awalve block:

1, a pipe leading from the water tank to the valve block:

5, a water pipe leading from the valve block to'the intake pipe 1:

6, a longitudinal passage in the valve block, communicating with pipe 5:

7, a longitudinal bore in the valve block, this bore communicating withpipe 4:

. 8, a valve plunger sliding in bore 7:

9, a longitudinal series of ports placing passage 6 in communicationwith bore 7, these ports being adapted to be opened and closed, one ormore of them, by plunger 8:

10, a lever, which may be operated by hand or foot for adjusting theplunger 8':

11, a pivot on which lever 10 is mounted:

12, a connection from lever 10 adapted for connection with the throttlevalve controlling the admission of mixture to the intake pipe, from theusual carbureter: and

13, the admission end of the intake pipe.

Tank 2 is to be supplied with water, and when the engine is inoperativethen plunger 8 closes all of ports 9 and prevents the passage of waterto they intake pipe. When lever 10 is moved to the right it opens thethrottle (not shown) and admits the gaseous mixture to the intake pipe.Normally plunger 8 closes all of ports 9 and the ini- Specification ofLetters latent.

Patented Oct. 5, 1920.

Serial No. 311,660.

tial motion of the lever to the right admits the gaseous mixture to theintake but does not uncover any of the ports 9. But the further movementof lever 10 uncovers the first of ports 9 and causes water to be drawninto the intake pipe to join the mixture, and a further movement of thelever opens another one of the ports 9 and increases the quantity ofwater, and similarly, the. quantity of water supplied to the intake pipeis increased by further movement of the lever, the rate of wateradmitted to the intake pipe being thus proportioned to the means of thethree ports 9. It is found inpractice that the water thus drawn into theintake pipe by the suction of the engine joins with the mixture as avapor and is instrumental in preventing the solid deposits of carbon inthe engine, or in lessening the deposit, or in softening depositsalready formed, the softened deposits blowing out of the engine with theexhaust.

It is to be understood that the drawing illustrates but a singleexemplification of my invention, as it has been my intention simply toset forth the principle of the invention and the best means known to mefor realizing that principle.

I claim 1. A carbon preventative device for internal combustion engines,comprising a valve block having a plunger bore therein, asecond bore insaid block parallel with the plunger bore. a plunger in said plungerbore, means whereby the plunger bore may be connected with a source ofwater supply, means whereby said second bore may be connected with theintake manifold of an engine, a plurality of ports disposed at rightangles to and connecting the aforesaid bores, said plunger when in oneposition serving to cover all of said ports. and thereby preventcommunication between said bores, together with means for moving saidplunger to uncover said ports one after the other.

2. A carbon preventative device for internal combustion engines,comprising a valve block having a plunger bore therein, a second bore insaid block, a plunger in said plunger bore, means whereby said plungerbore may be connected with a source of Water supply, means whereby thesecond bore may be connected with the intake 1nan1- fold of an engine, aplurality of ports adapted to afford communication between said bores,said plunger When in one position serving to cover all of said ports,and thereby prevent communication between said bores and means formoving said plunger to uncover said ports one after the other, saidplunger being capable of a defi- 10 nite substantial movement in saidplunger bore, before uncovering any of said ports, substantially as andfor the purpose set forth.

JAMES B. SCHUMACHER. Witnesses:

LoUIs C. DEARING, G120. H. RAKEL.

